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Lithium ion transport in Li2SO4-Li2O-P2O5 glasses
被引:54
作者:
Ganguli, M
[1
]
Bhat, MH
[1
]
Rao, KJ
[1
]
机构:
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
关键词:
lithium ion conductivity;
lithium phosphate glasses;
lithium sulphate glasses;
D O I:
10.1016/S0167-2738(99)00059-4
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Electrical conductivity and dielectric relaxation studies on a large number of lithium ion conducting glasses belonging to the ternary glass system Li2SO4-Li2O-P2O5 have been carried out over a wide range of temperature (150 K to 450 K) and frequencies (10 Hz-10(7) Hz). DC conductivities exhibit two different activation regions. This seems to be suggestive of the presence of a cluster-tissue texture in these glasses The clusters may be of both LI,SO, and lithium phosphate and are held together by a connective tissue of average composition. This conjecture seems to be well-supported by the ac conductivity behaviour of these glasses which have been analysed using both power law and stretched exponential relaxation functions. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码:23 / 33
页数:11
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